/***********************************************************

Copyright (C) 1997, 2002, 2003 Martin von Loewis

Permission to use, copy, modify, and distribute this software and its

documentation for any purpose and without fee is hereby granted,

provided that the above copyright notice appear in all copies.

This software comes with no warranty. Use at your own risk.

******************************************************************/

#include "Python.h"

#include <stdio.h>

#include <locale.h>

#include <string.h>

#include <ctype.h>

#ifdef HAVE_ERRNO_H

#include <errno.h>

#endif

#ifdef HAVE_LANGINFO_H

#include <langinfo.h>

#endif

#ifdef HAVE_LIBINTL_H

#include <libintl.h>

#endif

#ifdef HAVE_WCHAR_H

#include <wchar.h>

#endif

#if defined(MS_WINDOWS)

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

#endif

#ifdef RISCOS

char *strdup(const char *);

#endif

PyDoc_STRVAR(locale__doc__, "Support for POSIX locales.");

static PyObject *Error;

/* support functions for formatting floating point numbers */

PyDoc_STRVAR(setlocale__doc__,

"(integer,string=None) -> string. Activates/queries locale processing.");

/* the grouping is terminated by either 0 or CHAR_MAX */

static PyObject*

copy_grouping(char* s)

{

int i;

PyObject *result, *val = NULL;

if (s[0] == '\0') {

/* empty string: no grouping at all */

return PyList_New(0);

}

for (i = 0; s[i] != '\0' && s[i] != CHAR_MAX; i++)

; /* nothing */

result = PyList_New(i+1);

if (!result)

return NULL;

i = -1;

do {

i++;

val = PyInt_FromLong(s[i]);

if (val == NULL) {

Py_DECREF(result);

return NULL;

}

PyList_SET_ITEM(result, i, val);

} while (s[i] != '\0' && s[i] != CHAR_MAX);

return result;

}

static void

fixup_ulcase(void)

{

PyObject *mods, *strop, *string, *ulo;

unsigned char ul[256];

int n, c;

/* find the string and strop modules */

mods = PyImport_GetModuleDict();

if (!mods)

return;

string = PyDict_GetItemString(mods, "string");

if (string)

string = PyModule_GetDict(string);

strop=PyDict_GetItemString(mods, "strop");

if (strop)

strop = PyModule_GetDict(strop);

if (!string && !strop)

return;

/* create uppercase map string */

n = 0;

for (c = 0; c < 256; c++) {

if (isupper(c))

ul[n++] = c;

}

ulo = PyString_FromStringAndSize((const char *)ul, n);

if (!ulo)

return;

if (string)

PyDict_SetItemString(string, "uppercase", ulo);

if (strop)

PyDict_SetItemString(strop, "uppercase", ulo);

Py_DECREF(ulo);

/* create lowercase string */

n = 0;

for (c = 0; c < 256; c++) {

if (islower(c))

ul[n++] = c;

}

ulo = PyString_FromStringAndSize((const char *)ul, n);

if (!ulo)

return;

if (string)

PyDict_SetItemString(string, "lowercase", ulo);

if (strop)

PyDict_SetItemString(strop, "lowercase", ulo);

Py_DECREF(ulo);

/* create letters string */

n = 0;

for (c = 0; c < 256; c++) {

if (isalpha(c))

ul[n++] = c;

}

ulo = PyString_FromStringAndSize((const char *)ul, n);

if (!ulo)

return;

if (string)

PyDict_SetItemString(string, "letters", ulo);

Py_DECREF(ulo);

}

static PyObject*

PyLocale_setlocale(PyObject* self, PyObject* args)

{

int category;

char *locale = NULL, *result;

PyObject *result_object;

if (!PyArg_ParseTuple(args, "i|z:setlocale", &category, &locale))

return NULL;

#if defined(MS_WINDOWS)

if (category < LC_MIN || category > LC_MAX)

{

PyErr_SetString(Error, "invalid locale category");

return NULL;

}

#endif

if (locale) {

/* set locale */

result = setlocale(category, locale);

if (!result) {

/* operation failed, no setting was changed */

PyErr_SetString(Error, "unsupported locale setting");

return NULL;

}

result_object = PyString_FromString(result);

if (!result_object)

return NULL;

/* record changes to LC_CTYPE */

if (category == LC_CTYPE || category == LC_ALL)

fixup_ulcase();

/* things that got wrong up to here are ignored */

PyErr_Clear();

} else {

/* get locale */

result = setlocale(category, NULL);

if (!result) {

PyErr_SetString(Error, "locale query failed");

return NULL;

}

result_object = PyString_FromString(result);

}

return result_object;

}

PyDoc_STRVAR(localeconv__doc__,

"() -> dict. Returns numeric and monetary locale-specific parameters.");

static PyObject*

PyLocale_localeconv(PyObject* self)

{

PyObject* result;

struct lconv *l;

PyObject *x;

result = PyDict_New();

if (!result)

return NULL;

/* if LC_NUMERIC is different in the C library, use saved value */

l = localeconv();

/* hopefully, the localeconv result survives the C library calls

involved herein */

#define RESULT_STRING(s)\

x = PyString_FromString(l->s);\

if (!x) goto failed;\

PyDict_SetItemString(result, #s, x);\

Py_XDECREF(x)

#define RESULT_INT(i)\

x = PyInt_FromLong(l->i);\

if (!x) goto failed;\

PyDict_SetItemString(result, #i, x);\

Py_XDECREF(x)

/* Numeric information */

RESULT_STRING(decimal_point);

RESULT_STRING(thousands_sep);

x = copy_grouping(l->grouping);

if (!x)

goto failed;

PyDict_SetItemString(result, "grouping", x);

Py_XDECREF(x);

/* Monetary information */

RESULT_STRING(int_curr_symbol);

RESULT_STRING(currency_symbol);

RESULT_STRING(mon_decimal_point);

RESULT_STRING(mon_thousands_sep);

x = copy_grouping(l->mon_grouping);

if (!x)

goto failed;

PyDict_SetItemString(result, "mon_grouping", x);

Py_XDECREF(x);

RESULT_STRING(positive_sign);

RESULT_STRING(negative_sign);

RESULT_INT(int_frac_digits);

RESULT_INT(frac_digits);

RESULT_INT(p_cs_precedes);

RESULT_INT(p_sep_by_space);

RESULT_INT(n_cs_precedes);

RESULT_INT(n_sep_by_space);

RESULT_INT(p_sign_posn);

RESULT_INT(n_sign_posn);

return result;

failed:

Py_XDECREF(result);

Py_XDECREF(x);

return NULL;

}

PyDoc_STRVAR(strcoll__doc__,

"string,string -> int. Compares two strings according to the locale.");

static PyObject*

PyLocale_strcoll(PyObject* self, PyObject* args)

{

#if !defined(HAVE_WCSCOLL) || !defined(Py_USING_UNICODE)

char *s1,*s2;

if (!PyArg_ParseTuple(args, "ss:strcoll", &s1, &s2))

return NULL;

return PyInt_FromLong(strcoll(s1, s2));

#else

PyObject *os1, *os2, *result = NULL;

wchar_t *ws1 = NULL, *ws2 = NULL;

int rel1 = 0, rel2 = 0, len1, len2;

if (!PyArg_UnpackTuple(args, "strcoll", 2, 2, &os1, &os2))

return NULL;

/* If both arguments are byte strings, use strcoll. */

if (PyString_Check(os1) && PyString_Check(os2))

return PyInt_FromLong(strcoll(PyString_AS_STRING(os1),

PyString_AS_STRING(os2)));

/* If neither argument is unicode, it's an error. */

if (!PyUnicode_Check(os1) && !PyUnicode_Check(os2)) {

PyErr_SetString(PyExc_ValueError, "strcoll arguments must be strings");

}

/* Convert the non-unicode argument to unicode. */

if (!PyUnicode_Check(os1)) {

os1 = PyUnicode_FromObject(os1);

if (!os1)

return NULL;

rel1 = 1;

}

if (!PyUnicode_Check(os2)) {

os2 = PyUnicode_FromObject(os2);

if (!os2) {

if (rel1) {

Py_DECREF(os1);

}

return NULL;

}

rel2 = 1;

}

/* Convert the unicode strings to wchar[]. */

len1 = PyUnicode_GET_SIZE(os1) + 1;

ws1 = PyMem_NEW(wchar_t, len1);

if (!ws1) {

PyErr_NoMemory();

goto done;

}

if (PyUnicode_AsWideChar((PyUnicodeObject*)os1, ws1, len1) == -1)

goto done;

ws1[len1 - 1] = 0;

len2 = PyUnicode_GET_SIZE(os2) + 1;

ws2 = PyMem_NEW(wchar_t, len2);

if (!ws2) {

PyErr_NoMemory();

goto done;

}

if (PyUnicode_AsWideChar((PyUnicodeObject*)os2, ws2, len2) == -1)

goto done;

ws2[len2 - 1] = 0;

/* Collate the strings. */

result = PyInt_FromLong(wcscoll(ws1, ws2));

done:

/* Deallocate everything. */

if (ws1) PyMem_FREE(ws1);

if (ws2) PyMem_FREE(ws2);

if (rel1) {

Py_DECREF(os1);

}

if (rel2) {

Py_DECREF(os2);

}

return result;

#endif

}

PyDoc_STRVAR(strxfrm__doc__,

"string -> string. Returns a string that behaves for cmp locale-aware.");

static PyObject*

PyLocale_strxfrm(PyObject* self, PyObject* args)

{

char *s, *buf;

size_t n1, n2;

PyObject *result;

if (!PyArg_ParseTuple(args, "s:strxfrm", &s))

return NULL;

/* assume no change in size, first */

n1 = strlen(s) + 1;

buf = PyMem_Malloc(n1);

if (!buf)

return PyErr_NoMemory();

n2 = strxfrm(buf, s, n1) + 1;

if (n2 > n1) {

/* more space needed */

buf = PyMem_Realloc(buf, n2);

if (!buf)

return PyErr_NoMemory();

strxfrm(buf, s, n2);

}

result = PyString_FromString(buf);

PyMem_Free(buf);

return result;

}

#if defined(MS_WINDOWS)

static PyObject*

PyLocale_getdefaultlocale(PyObject* self)

{

char encoding[100];

char locale[100];

PyOS_snprintf(encoding, sizeof(encoding), "cp%d", GetACP());

if (GetLocaleInfo(LOCALE_USER_DEFAULT,

LOCALE_SISO639LANGNAME,

locale, sizeof(locale))) {

Py_ssize_t i = strlen(locale);

locale[i++] = '_';

if (GetLocaleInfo(LOCALE_USER_DEFAULT,

LOCALE_SISO3166CTRYNAME,

locale+i, (int)(sizeof(locale)-i)))

return Py_BuildValue("ss", locale, encoding);

}

/* If we end up here, this windows version didn't know about

ISO639/ISO3166 names (it's probably Windows 95). Return the

Windows language identifier instead (a hexadecimal number) */

locale[0] = '0';

locale[1] = 'x';

if (GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_IDEFAULTLANGUAGE,

locale+2, sizeof(locale)-2)) {

return Py_BuildValue("ss", locale, encoding);

}

/* cannot determine the language code (very unlikely) */

Py_INCREF(Py_None);

return Py_BuildValue("Os", Py_None, encoding);

}

#endif

#ifdef HAVE_LANGINFO_H

#define LANGINFO(X) {#X, X}

static struct langinfo_constant{

char* name;

int value;

} langinfo_constants[] =

{

/* These constants should exist on any langinfo implementation */

LANGINFO(DAY_1),

LANGINFO(DAY_2),

LANGINFO(DAY_3),

LANGINFO(DAY_4),

LANGINFO(DAY_5),

LANGINFO(DAY_6),

LANGINFO(DAY_7),

LANGINFO(ABDAY_1),

LANGINFO(ABDAY_2),

LANGINFO(ABDAY_3),

LANGINFO(ABDAY_4),

LANGINFO(ABDAY_5),

LANGINFO(ABDAY_6),

LANGINFO(ABDAY_7),

LANGINFO(MON_1),

LANGINFO(MON_2),

LANGINFO(MON_3),

LANGINFO(MON_4),

LANGINFO(MON_5),

LANGINFO(MON_6),

LANGINFO(MON_7),

LANGINFO(MON_8),

LANGINFO(MON_9),

LANGINFO(MON_10),

LANGINFO(MON_11),

LANGINFO(MON_12),

LANGINFO(ABMON_1),

LANGINFO(ABMON_2),

LANGINFO(ABMON_3),

LANGINFO(ABMON_4),

LANGINFO(ABMON_5),

LANGINFO(ABMON_6),

LANGINFO(ABMON_7),

LANGINFO(ABMON_8),

LANGINFO(ABMON_9),

LANGINFO(ABMON_10),

LANGINFO(ABMON_11),

LANGINFO(ABMON_12),

#ifdef RADIXCHAR

/* The following are not available with glibc 2.0 */

LANGINFO(RADIXCHAR),

LANGINFO(THOUSEP),

/* YESSTR and NOSTR are deprecated in glibc, since they are

a special case of message translation, which should be rather

done using gettext. So we don't expose it to Python in the

first place.

LANGINFO(YESSTR),

LANGINFO(NOSTR),

*/

LANGINFO(CRNCYSTR),

#endif

LANGINFO(D_T_FMT),

LANGINFO(D_FMT),

LANGINFO(T_FMT),

LANGINFO(AM_STR),

LANGINFO(PM_STR),

/* The following constants are available only with XPG4, but...

AIX 3.2. only has CODESET.

OpenBSD doesn't have CODESET but has T_FMT_AMPM, and doesn't have

a few of the others.

Solution: ifdef-test them all. */

#ifdef CODESET

LANGINFO(CODESET),

#endif

#ifdef T_FMT_AMPM

LANGINFO(T_FMT_AMPM),

#endif

#ifdef ERA

LANGINFO(ERA),

#endif

#ifdef ERA_D_FMT

LANGINFO(ERA_D_FMT),

#endif

#ifdef ERA_D_T_FMT

LANGINFO(ERA_D_T_FMT),

#endif

#ifdef ERA_T_FMT

LANGINFO(ERA_T_FMT),

#endif

#ifdef ALT_DIGITS

LANGINFO(ALT_DIGITS),

#endif

#ifdef YESEXPR

LANGINFO(YESEXPR),

#endif

#ifdef NOEXPR

LANGINFO(NOEXPR),

#endif

#ifdef _DATE_FMT

/* This is not available in all glibc versions that have CODESET. */

LANGINFO(_DATE_FMT),

#endif

{0, 0}

};

PyDoc_STRVAR(nl_langinfo__doc__,

"nl_langinfo(key) -> string\n"

"Return the value for the locale information associated with key.");

static PyObject*

PyLocale_nl_langinfo(PyObject* self, PyObject* args)

{

int item, i;

if (!PyArg_ParseTuple(args, "i:nl_langinfo", &item))

return NULL;

/* Check whether this is a supported constant. GNU libc sometimes

returns numeric values in the char* return value, which would

crash PyString_FromString. */

for (i = 0; langinfo_constants[i].name; i++)

if (langinfo_constants[i].value == item) {

/* Check NULL as a workaround for GNU libc's returning NULL

instead of an empty string for nl_langinfo(ERA). */

const char *result = nl_langinfo(item);

return PyString_FromString(result != NULL ? result : "");

}

PyErr_SetString(PyExc_ValueError, "unsupported langinfo constant");

return NULL;

}

#endif /* HAVE_LANGINFO_H */

#ifdef HAVE_LIBINTL_H

PyDoc_STRVAR(gettext__doc__,

"gettext(msg) -> string\n"

"Return translation of msg.");

static PyObject*

PyIntl_gettext(PyObject* self, PyObject *args)

{

char *in;

if (!PyArg_ParseTuple(args, "s", &in))

return 0;

return PyString_FromString(gettext(in));

}

PyDoc_STRVAR(dgettext__doc__,

"dgettext(domain, msg) -> string\n"

"Return translation of msg in domain.");

static PyObject*

PyIntl_dgettext(PyObject* self, PyObject *args)

{

char *domain, *in;

if (!PyArg_ParseTuple(args, "zs", &domain, &in))

return 0;

return PyString_FromString(dgettext(domain, in));

}

PyDoc_STRVAR(dcgettext__doc__,

"dcgettext(domain, msg, category) -> string\n"

"Return translation of msg in domain and category.");

static PyObject*

PyIntl_dcgettext(PyObject *self, PyObject *args)

{

char *domain, *msgid;

int category;

if (!PyArg_ParseTuple(args, "zsi", &domain, &msgid, &category))

return 0;

return PyString_FromString(dcgettext(domain,msgid,category));

}

PyDoc_STRVAR(textdomain__doc__,

"textdomain(domain) -> string\n"

"Set the C library's textdmain to domain, returning the new domain.");

static PyObject*

PyIntl_textdomain(PyObject* self, PyObject* args)

{

char *domain;

if (!PyArg_ParseTuple(args, "z", &domain))

return 0;

domain = textdomain(domain);

if (!domain) {

PyErr_SetFromErrno(PyExc_OSError);

return NULL;

}

return PyString_FromString(domain);

}

PyDoc_STRVAR(bindtextdomain__doc__,

"bindtextdomain(domain, dir) -> string\n"

"Bind the C library's domain to dir.");

static PyObject*

PyIntl_bindtextdomain(PyObject* self,PyObject*args)

{

char *domain, *dirname;

if (!PyArg_ParseTuple(args, "sz", &domain, &dirname))

return 0;

if (!strlen(domain)) {

PyErr_SetString(Error, "domain must be a non-empty string");

return 0;

}

dirname = bindtextdomain(domain, dirname);

if (!dirname) {

PyErr_SetFromErrno(PyExc_OSError);

return NULL;

}

return PyString_FromString(dirname);

}

#ifdef HAVE_BIND_TEXTDOMAIN_CODESET

PyDoc_STRVAR(bind_textdomain_codeset__doc__,

"bind_textdomain_codeset(domain, codeset) -> string\n"

"Bind the C library's domain to codeset.");

static PyObject*

PyIntl_bind_textdomain_codeset(PyObject* self,PyObject*args)

{

char *domain,*codeset;

if (!PyArg_ParseTuple(args, "sz", &domain, &codeset))

return NULL;

codeset = bind_textdomain_codeset(domain, codeset);

if (codeset)

return PyString_FromString(codeset);

Py_RETURN_NONE;

}

#endif

#endif

static struct PyMethodDef PyLocale_Methods[] = {

{"setlocale", (PyCFunction) PyLocale_setlocale,

METH_VARARGS, setlocale__doc__},

{"localeconv", (PyCFunction) PyLocale_localeconv,

METH_NOARGS, localeconv__doc__},

{"strcoll", (PyCFunction) PyLocale_strcoll,

METH_VARARGS, strcoll__doc__},

{"strxfrm", (PyCFunction) PyLocale_strxfrm,

METH_VARARGS, strxfrm__doc__},

#if defined(MS_WINDOWS)

{"_getdefaultlocale", (PyCFunction) PyLocale_getdefaultlocale, METH_NOARGS},

#endif

#ifdef HAVE_LANGINFO_H

{"nl_langinfo", (PyCFunction) PyLocale_nl_langinfo,

METH_VARARGS, nl_langinfo__doc__},

#endif

#ifdef HAVE_LIBINTL_H

{"gettext",(PyCFunction)PyIntl_gettext,METH_VARARGS,

gettext__doc__},

{"dgettext",(PyCFunction)PyIntl_dgettext,METH_VARARGS,

dgettext__doc__},

{"dcgettext",(PyCFunction)PyIntl_dcgettext,METH_VARARGS,

dcgettext__doc__},

{"textdomain",(PyCFunction)PyIntl_textdomain,METH_VARARGS,

textdomain__doc__},

{"bindtextdomain",(PyCFunction)PyIntl_bindtextdomain,METH_VARARGS,

bindtextdomain__doc__},

#ifdef HAVE_BIND_TEXTDOMAIN_CODESET

{"bind_textdomain_codeset",(PyCFunction)PyIntl_bind_textdomain_codeset,

METH_VARARGS, bind_textdomain_codeset__doc__},

#endif

#endif

{NULL, NULL}

};

PyMODINIT_FUNC

init_locale(void)

{

PyObject *m, *d, *x;

#ifdef HAVE_LANGINFO_H

int i;

#endif

m = Py_InitModule("_locale", PyLocale_Methods);

if (m == NULL)

return;

d = PyModule_GetDict(m);

x = PyInt_FromLong(LC_CTYPE);

PyDict_SetItemString(d, "LC_CTYPE", x);

Py_XDECREF(x);

x = PyInt_FromLong(LC_TIME);

PyDict_SetItemString(d, "LC_TIME", x);

Py_XDECREF(x);

x = PyInt_FromLong(LC_COLLATE);

PyDict_SetItemString(d, "LC_COLLATE", x);

Py_XDECREF(x);

x = PyInt_FromLong(LC_MONETARY);

PyDict_SetItemString(d, "LC_MONETARY", x);

Py_XDECREF(x);

#ifdef LC_MESSAGES

x = PyInt_FromLong(LC_MESSAGES);

PyDict_SetItemString(d, "LC_MESSAGES", x);

Py_XDECREF(x);

#endif /* LC_MESSAGES */

x = PyInt_FromLong(LC_NUMERIC);

PyDict_SetItemString(d, "LC_NUMERIC", x);

Py_XDECREF(x);

x = PyInt_FromLong(LC_ALL);

PyDict_SetItemString(d, "LC_ALL", x);

Py_XDECREF(x);

x = PyInt_FromLong(CHAR_MAX);

PyDict_SetItemString(d, "CHAR_MAX", x);

Py_XDECREF(x);

Error = PyErr_NewException("locale.Error", NULL, NULL);

PyDict_SetItemString(d, "Error", Error);

x = PyString_FromString(locale__doc__);

PyDict_SetItemString(d, "__doc__", x);

Py_XDECREF(x);

#ifdef HAVE_LANGINFO_H

for (i = 0; langinfo_constants[i].name; i++) {

PyModule_AddIntConstant(m, langinfo_constants[i].name,

langinfo_constants[i].value);

}

#endif

}

/*

Local variables:

c-basic-offset: 4

indent-tabs-mode: nil

End:

*/